Mogiana 4-4-0 Locomotives in Brazil


Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 20851)

Data from Lionel Wiener, Les chemins de fer du Breñsil (Paris: H. Dunod et E Pinat, Editeurs, 1912), p. 115. Works numbers were 3469-3470, 3517-3520 in 1892.

NB: Tube heating surface shown in Lionel Wiener's table resulted from calculations using tube inside diameters ("fire side"); it was given as 57.9 sq m (623 sq ft). the table shows the external diameter, from which both the tube and evaporative heating surfaces in Locobase are derived.

Principal Dimensions by Steve Llanso of Sweat House Media

Classunknown
Locobase ID20851
RailroadMogiana
CountryBrazil
Whyte4-4-0
Number in Class6
Road Numbers
GaugeMetre
Number Built6
BuilderBeyer, Peacock
Year1892
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 8.66 / 2.64
Engine Wheelbase (ft / m)17.42 / 5.31
Ratio of driving wheelbase to overall engine wheelbase 0.50
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)40,785 / 18,500
Engine Weight (lbs / kg)62,832 / 28,500
Tender Loaded Weight (lbs / kg)51,147 / 23,200
Total Engine and Tender Weight (lbs / kg)113,979 / 51,700
Tender Water Capacity (gals / ML)1848 / 7
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 4.20 / 3.80
Minimum weight of rail (calculated) (lb/yd / kg/m)34 / 17
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)45 / 1143
Boiler Pressure (psi / kPa)171.10 / 11.80
High Pressure Cylinders (dia x stroke) (in / mm)17.01" x 20" / 432x508
Tractive Effort (lbs / kg)18,702 / 8483.09
Factor of Adhesion (Weight on Drivers/Tractive Effort) 2.18
Heating Ability
Tubes (number - dia) (in / mm)157 - 1.89" / 48
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 9.22 / 2.81
Firebox Area (sq ft / m2)74.70 / 6.94
Grate Area (sq ft / m2)12.92 / 1.20
Evaporative Heating Surface (sq ft / m2)791 / 73.50
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)791 / 73.50
Evaporative Heating Surface/Cylinder Volume150.37
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2211
Same as above plus superheater percentage2211
Same as above but substitute firebox area for grate area12,781
Power L12841
Power MT307.14

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